Bryan has 200 marbles.
Adam has 30 marbles.
- What is the sum of marbles?
- How many marbles must Bryan give to Adam so both have the same number of marbles?
- How many marbles must Adam get from Bryan so both have the same number of marbles?
(a)
Total sum of marbles
= 200 + 30
= 230
(b)
Number of marbles that Bryan has more than Adam
= 200 - 30
= 170
For both Bryan and Adam to have the same number of marbles, the extra marbles must be shared equally.
Number of marbles that Bryan must give to Adam
= 170 ÷ 2
= 85
(c)
Number of marbles that Adam must get from Bryan
= Number of marbles that Bryan must give to Adam
= 85
Answer(s): (a) 230; (b) 85; (c) 85